How large a dick can go into an ass?

The size of what can comfortably fit into the anus varies greatly among individuals and depends on factors like anatomy, experience, and relaxation. Generally, the anus is capable of stretching to accommodate different sizes, but it's important to prioritize safety and comfort. Gradual stretching, proper lubrication, and communication are essential to avoid discomfort or injury. Always listen to your body and proceed with care.